pjkirk
10-17-2010, 23:46
Has anybody tried making one of these:
https://www.adventuremoto.com.au/images/packseat_prod_black.gif
with bundled carbon fiber arrow shafts for legs?
I'm thinking 4 arrow shafts per leg, a strip of webbing going around the entire bottom to prevent the legs from splaying out, silnylon seat w/ webbing crossed underneath and bits of much heavier material at the corners/edges. Not sure about the joint in the middle, but it seems like if the top and bottom are strong enough, you could use resin and a strap of webbing there also.
Short calculations put the weight of the arrow shafts at between 4oz (12 x 20" x 7.3 grains/inch) to 6.5oz (w/ 12 grain shafts). Seems like the fabric and webbing could be done for about 6oz or so. Add a couple more ounces for various reinforcement to bundle the legs together (resin/strapping). So that should be ~1lb at most w/ a pretty good weight capacity and height.
I'm not sure what could be done (or would be needed) where the shafts hit the ground though. One or two 3" pieces of 1.5" webbing glued across the base w/ resin sounds reasonably strong though, and wouldn't weigh much.
Sound feasible? Strong enough? (I've never worked w/ the arrow shafts before...just played w/a couple)
https://www.adventuremoto.com.au/images/packseat_prod_black.gif
with bundled carbon fiber arrow shafts for legs?
I'm thinking 4 arrow shafts per leg, a strip of webbing going around the entire bottom to prevent the legs from splaying out, silnylon seat w/ webbing crossed underneath and bits of much heavier material at the corners/edges. Not sure about the joint in the middle, but it seems like if the top and bottom are strong enough, you could use resin and a strap of webbing there also.
Short calculations put the weight of the arrow shafts at between 4oz (12 x 20" x 7.3 grains/inch) to 6.5oz (w/ 12 grain shafts). Seems like the fabric and webbing could be done for about 6oz or so. Add a couple more ounces for various reinforcement to bundle the legs together (resin/strapping). So that should be ~1lb at most w/ a pretty good weight capacity and height.
I'm not sure what could be done (or would be needed) where the shafts hit the ground though. One or two 3" pieces of 1.5" webbing glued across the base w/ resin sounds reasonably strong though, and wouldn't weigh much.
Sound feasible? Strong enough? (I've never worked w/ the arrow shafts before...just played w/a couple)